Why is the 13" MBA so Lound??

So, today I was creating a slide show from some pics in iphoto and during that time the fan was on and quite loud almost the entire time! Seems little strange tome and the bottom got very warm. Has anyone else experienced this situation?

So, today I was creating a slide show from some pics in iphoto and during that time the fan was on and quite loud almost the entire time! Seems little strange tome and the bottom got very warm. Has anyone else experienced this situation?

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Nope, and I've worked on a few PowerPoint presentations on mine. Did you have much else going on while you were building the deck?

Hmm...Right now I have Google Chrome open with 8 tabs, iChat, Preview, Word, PowerPoint, Outlook, and Communicator and I just opened a new ppt presentation and started inserting large jpegs in and doing some editing within powerpoint. No fan, no heat.

How long were you working on the presentation and what were you doing beyond inserting pics?

Hmm...Right now I have Google Chrome open with 8 tabs, iChat, Preview, Word, PowerPoint, Outlook, and Communicator and I just opened a new ppt presentation and started inserting large jpegs in and doing some editing within powerpoint. No fan, no heat.

How long were you working on the presentation and what were you doing beyond inserting pics?

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Having many apps open doesn't trigger the fan. I've had 50 apps (ssd testing) running, and fan rpm stays at 2000rpm.

I can have nothing open except a couple flash videos going, and cpu temp would be approaching 80c, and 2700rpm+ fan. It's the CPU processing that triggers the fan.

150% CPU use means the CPU is used to 3/4 of its capacity (150% of 200% <-- 2 cores; 1 core = 100%), thus more power has to be drawn and as more power generates more heat, the CPU gets hotter and the fan is starting to spin faster than its idle speed.

If your photo library is newly copied, opening iPhoto may cause it to start building thumbnails, jpegs from raws, face searches etc depending on how you populated it. Syncing with an iPhone or iPad the first time will also cause an enormous load as it optimized pics to sync to these devices.

So maybe leave iPhoto up for a few hours and see if the load drops off. I know the first time I did this after copying my photo library over it took a number of hours for iPhoto to finish it's business before it became a trivial background process.

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